450 host not found when using domain name for outbound relay host

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We are getting 450 errors can not connect to host (outbounds5.obsmtp.com) =
on the gwia. This is our outbound relay host. If I change the settings =
for the GWIA to use the resolved IP address 12.158.34.250, the mail goes =
out fine.
FYI: This started after we changed ISPs requiring us to change the =
external addresses that our firewall translates (NAT). I already tried =
updating sys:etc\resolve.cfg to use the new nameservers, reinitialized and =
restarted the gwia. Still no change. I ran nslookup on the server and it =
seems to be using the new nameservers. I also tried iptrace outbounds5.obs=
mtp.com, but that is not able to resolve.
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<META http-equiv=3DContent-Type content=3D"text/html; charset=3Diso-8859-1"=
>
<META content=3D"MSHTML 6.00.2800.1400" name=3DGENERATOR></HEAD>
<BODY style=3D"MARGIN: 4px 4px 1px; FONT: 10pt Tahoma">
<DIV>We are getting 450 errors can not connect to host (outbounds5.obsmtp.c=
om) on the gwia.&nbsp; This is our outbound relay host.&nbsp; If I change =
the settings for the GWIA to use the resolved IP address 12.158.34.250, =
the mail goes out fine.</DIV>
<DIV>&nbsp;</DIV>
<DIV>FYI:&nbsp; This started after we changed ISPs requiring us to change =
the external addresses that our firewall translates (NAT).&nbsp; I already =
tried updating sys:etc\resolve.cfg to use the new nameservers, reinitialize=
d and restarted the gwia.&nbsp; Still no change.&nbsp; I ran nslookup on =
the server and it seems to be using the new nameservers.&nbsp; I also =
tried iptrace outbounds5.obsmtp.com, but that is not able to resolve.</DIV>=
</BODY></HTML>
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Mark,
Until your server can resolve names, it's going to be an issue - does this server had any filters in place that keep it from doing DNS lookups?
--
Danita Zanre
Novell Volunteer Sysop
www.caledonia.net/iris.html

0

Danita

6/9/2004 5:32:21 PM

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I got it to work. I shut down the gwia, reinitialized the system again, =
changed the setting in C1 and started the gwia. Now it seems to be =
working.
>>> Danita Zanre<gwtech@no-spam-zanre.com> 6/9/2004 1:32:21 PM >>>
Mark,
Until your server can resolve names, it's going to be an issue - does this =
server had any filters in place that keep it from doing DNS lookups?
--=20
Danita Zanre
Novell Volunteer Sysop
www.caledonia.net/iris.html
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Content-Type: text/html; charset=windows-1252
Content-Transfer-Encoding: quoted-printable
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; charset=3Diso-8859-1"=
>
<META content=3D"MSHTML 6.00.2800.1400" name=3DGENERATOR></HEAD>
<BODY style=3D"MARGIN: 4px 4px 1px; FONT: 10pt Tahoma">I got it to =
work.&nbsp; I shut down the gwia, reinitialized the system again, changed =
the setting in C1 and started the gwia.&nbsp; Now it seems to be working.<B=
R><BR>&gt;&gt;&gt; Danita Zanre&lt;gwtech@no-spam-zanre.com&gt; 6/9/2004 =
1:32:21 PM &gt;&gt;&gt;<BR>
<DIV style=3D"COLOR: #000000">Mark,<BR><BR>Until your server can resolve =
names, it's going to be an issue - does this server had any filters in =
place that keep it from doing DNS lookups?<BR><BR>-- <BR>Danita Zanre<BR>No=
vell Volunteer Sysop<BR><A href=3D"http://www.caledonia.net/iris.html">www.=
caledonia.net/iris.html</A><BR><BR><BR><BR></DIV></BODY></HTML>
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0

MARK

6/9/2004 7:04:34 PM

Reply:

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